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Ch-12 SURFING INTERNET

ANSWER THE FOLLOWING QUESTIONS:


Ques: How do computers on the internet communicate with each other?
Ans. Computers use TCP/IP[Transmission control protocol/Internet protocol) to communicate with each other over the internet.

Ques: What do you know about hypertext?
Ans. Hypertext is text that links to other information. By clicking on a link in a hypertext document, a user can quickly jump to different content.

Ques: Explain the term URL. What is the use of it?
Ans. URL refers to the address of a World Wide Web page.

As the name suggests, A URL indicates the location of a resource as well as the protocol used to access it.

Ques: What do you understand by streaming media?
Ans. Streaming media is video or audio content sent in compressed form over the Internet and played immediately, rather than being saved to the hard drive.. With streaming media, a user does not have to wait to download a file to play it. Because the media is sent in a continuous stream of data it can play as it arrives.

Ques: Define the term Real-Time Communication.
Ans. Real-time communications (RTC) is a term used to refer to any live telecommunications that occur without transmission delays. RTC is nearly instant with minimal latency (delay). RTC data and messages are not stored between transmission and reception.

Ques: What is Skype? Mention any two basic requirements to use this software.
Ans. Skype is one of the most popular applications or Voice-over Internet Protocol Services.
It allows you to do instant messaging and make voice and video calls to fellow Skype users on the Internet for free.
Following are some basic requirements to use this software:
a)     High-Speed Internet connection.
b)    Speakers/Head-Phones and a microphone.
c)     Webcam to make video calls.

Ques: What do you understand by blog? Explain its uses.
Ans. A blog is an easy-to-create web site that allows users to share their thoughts with the world.


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